From owner-freebsd-pkgbase@freebsd.org Tue Mar 8 13:52:07 2016 Return-Path: Delivered-To: freebsd-pkgbase@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 04724AC791C for ; Tue, 8 Mar 2016 13:52:07 +0000 (UTC) (envelope-from matthew@FreeBSD.org) Received: from smtp.infracaninophile.co.uk (smtp.infracaninophile.co.uk [81.2.117.100]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 5D829B7C for ; Tue, 8 Mar 2016 13:52:06 +0000 (UTC) (envelope-from matthew@FreeBSD.org) Received: from zero-gravitas.local (unknown [IPv6:2001:8b0:151:1:2ef0:eeff:fe24:fa38]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: m.seaman@infracaninophile.co.uk) by smtp.infracaninophile.co.uk (Postfix) with ESMTPSA id 185DED652 for ; Tue, 8 Mar 2016 13:51:54 +0000 (UTC) Authentication-Results: smtp.infracaninophile.co.uk; dmarc=none header.from=FreeBSD.org Authentication-Results: smtp.infracaninophile.co.uk/185DED652; dkim=none; dkim-atps=neutral From: Matthew Seaman Subject: Re: [CFT] packaging the base system with pkg(8) To: freebsd-pkgbase@freebsd.org References: <20160302235429.GD75641@FreeBSD.org> <20160308124016.GA70809@zxy.spb.ru> <20160308131847.GP1531@FreeBSD.org> Message-ID: <56DED8F1.8030606@FreeBSD.org> Date: Tue, 8 Mar 2016 13:51:45 +0000 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.11; rv:38.0) Gecko/20100101 Thunderbird/38.6.0 MIME-Version: 1.0 In-Reply-To: <20160308131847.GP1531@FreeBSD.org> Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="BlmEj2v2v1drQ009eeqLuDRPUTmIcc0Vh" X-Virus-Scanned: clamav-milter 0.99 at smtp.infracaninophile.co.uk X-Virus-Status: Clean X-Spam-Status: No, score=2.2 required=5.0 tests=RDNS_NONE,SPF_SOFTFAIL autolearn=no autolearn_force=no version=3.4.1 X-Spam-Level: ** X-Spam-Checker-Version: SpamAssassin 3.4.1 (2015-04-28) on smtp.infracaninophile.co.uk X-BeenThere: freebsd-pkgbase@freebsd.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: "Packaging the FreeBSD base system." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 08 Mar 2016 13:52:07 -0000 This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --BlmEj2v2v1drQ009eeqLuDRPUTmIcc0Vh Content-Type: multipart/mixed; boundary="2L0iSuUOcxgiuJlbPC1rhAwgQ3wq4u52e" From: Matthew Seaman To: freebsd-pkgbase@freebsd.org Message-ID: <56DED8F1.8030606@FreeBSD.org> Subject: Re: [CFT] packaging the base system with pkg(8) References: <20160302235429.GD75641@FreeBSD.org> <20160308124016.GA70809@zxy.spb.ru> <20160308131847.GP1531@FreeBSD.org> In-Reply-To: <20160308131847.GP1531@FreeBSD.org> --2L0iSuUOcxgiuJlbPC1rhAwgQ3wq4u52e Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: quoted-printable On 08/03/2016 13:18, Glen Barber wrote: > Regarding the .so files, I am not clear on the original intent behind > separating the actual shared library from the installed symbolic link t= o > the real shared library, but in my investigation into this, only the > symlinks are provided by the '-development' package. Once compiled, a program will dynamically load a specific ABI version at run time -- it needs to refer to a shared library filename including some version numbers. However at compile time a program may be able to link against various different ABI versions of a shlib, so long as the API is still the same (and established APIs tend to change much more slowly than ABIs). So end-users need the shared library name with all the version numbers, but developers (generally) want the sym-link that points at the locally preferred version of the shared library. There's also considerations to do with being able to install a number of different ABI versions of the same shared library simultaneously. There's nothing intrinsic to shared library versioning to prevent this, but having the sym-link in every shared library package would automatically make the different ABI-version packages conflict with each other. Cheers, Matthew --2L0iSuUOcxgiuJlbPC1rhAwgQ3wq4u52e-- --BlmEj2v2v1drQ009eeqLuDRPUTmIcc0Vh Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Comment: GPGTools - https://gpgtools.org iQJ8BAEBCgBmBQJW3tj5XxSAAAAAAC4AKGlzc3Vlci1mcHJAbm90YXRpb25zLm9w ZW5wZ3AuZmlmdGhob3JzZW1hbi5uZXQxOUYxNTRFQ0JGMTEyRTUwNTQ0RTNGMzAw MDUxM0YxMEUwQTlFNEU3AAoJEABRPxDgqeTnTeoQAJe3plLCuY0+4go6a7+2OKWa vXu8UE0ZnT9Gk3OQ/eqZw1BJ5selWesK1yUcBUxTGGM5wJcOgoOtbHeRX0z+9xjy vyAK2y9fXF+saOPCwVKk4NdbGceH1cAdRSiHjAyzR3n/ZuUund3hArS+SRIaOeoO 1HfKvvK+wfqHx7z6nW4X0Lt2MLkSL9LC6nspwU8GrZAlMPVnLIcZ0YEnSx7YBuqK l6hdtwndXUextGxV+nBmWH8qtX32h4HYn11zJvCAxXPR8nQRTAgezRdkPP6pVN0i hclIBOVALNXNc/7F+KpBqclYkm9WirV+UqGNz+IzG7K5MOzQV7O6jxy1ElnY4owX yoV7eGkKDUXe521rUSQLAZUfgbQC0U/+GaTjlnYRBbsAyxRsttI/Sv+wTQT+TOmM h60Ztw0iR5IswFaaMNURBcOgL8At3VPNqT6QVzjS5O+AhsyFR+NdT47usXUcK2lo UV0R5r9VsVYAMfkVm/vGBTWK52V/pMpwKNcayGTNEZsbkfFOlHrEgSvu9+mnMZbf DF4jeT6qjw9gE4i2UDEtFXMmBFc8Yma3HuBV+Cn23gDGie2pGRfWxJXepbxuk3MF XWtC6KHYgHQoIByWWlwv5z0ERi1aqyelz2JLj10iKhhZ20QivUVVoV13jWpyTwig yX9RDaIR6ynUBuuBxxwM =TSir -----END PGP SIGNATURE----- --BlmEj2v2v1drQ009eeqLuDRPUTmIcc0Vh--